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render: time how long time it takes to render a frame

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Daniel Eklöf 2019-07-18 09:33:49 +02:00
parent 7ad87fdf2b
commit 0ca20e3e6c
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1 changed files with 12 additions and 0 deletions
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render.c
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@ -2,6 +2,7 @@
#include <string.h>
#include <sys/ioctl.h>
#include <sys/time.h>
#include <wayland-cursor.h>
#include <xdg-shell.h>
@ -263,6 +264,9 @@ static const struct wl_callback_listener frame_listener = {
void
grid_render(struct terminal *term)
{
struct timeval start_time;
gettimeofday(&start_time, NULL);
static int last_cursor;
assert(term->width > 0);
@ -411,6 +415,14 @@ grid_render(struct terminal *term)
wl_callback_add_listener(term->frame_callback, &frame_listener, term);
wl_surface_commit(term->wl.surface);
struct timeval end_time;
gettimeofday(&end_time, NULL);
struct timeval render_time;
timersub(&end_time, &start_time, &render_time);
LOG_INFO("frame rendered in %lds %ldms",
render_time.tv_sec, render_time.tv_usec / 1000);
}
static void